Window construction



Jan. 5, 1965 G. F. sELlGL-:R 3,163,891

wINnow CONSTRUCTION Filed Nov. 1s, 1961 GLENN SEL/GER ANU/zus .w STAR/ 5A Tron/Veys United States Patent O 1163,891 WENDSW CNSTRUCTQN Glenn F.Seliger, Marathon, Wis., assigner to Mermet Corporation, Wausau, Wis., acorporation of Wisconsin Filed Nov. 13, i961, Ser. No. 151,923 it?Claims. (Cl. 2%-530 This invention relates to a Casement window unit andmore particularly to an improved sash locking mechanism for a easementwindow.

In an outward swinging easement Window unit, one side edge of the sashis hinged to the frame of the window and v the Window is generallyopened and closed by a crank mechanism. ln addition to the crankmechanism, a locking device is employed to draw the sash in tightlyagainst the frame and lock the sash.

In recent years the trend has been toward mgher or taller windows havinga height of three to `four feet. Because of the ilexibility of thematerials, two locking devices are generally needed to draw the sashinto the frame and lock the same. One locking unit is located at thebottom portion of the sash and the second locking unit is located at theupper portion of the sash so that the entire height of the sash will bedrawn firmly in toward the frame. In some cases separate locks areemployed at both the upper and lower portions of the sash, but separatelocks are not too practical for frequently the upper lock is so farabove the door level that it is diicult to reach and operate. Therefore,multiple point locking mechanisms are generally employed in which asingle operating member or handle is mechanically connected to two ormore locking members so that by operating the handle, the lockingmembers will engage and draw the sash in at various locations along itsheight and lock the same to the frame.

The present invention is directed to an improved locking mechanism for aeasement sash and particularly to a multiple point locking mechanism.The locking mechanism of the invention includes a vertical rod which isjournaled within a series of bearing blocks on the frame. Both the upperand the lower ends of the rod are bent at about a 90 angle to the bodyof the rod.

The lower bent end of the rod is located between a pair of fingersconnected to an operating handle pivotally mounted on the frame. As thehandle is depressed, the lingers move up and by a cam action, the lowerbent end of the rod is rotated and pivoted into engagement with a angeon the sash to draw the sash toward the frame. Simultaneously, the upperbent end of the rod is also pivoted and brought into contact with theilange at the upper portion of the sash to draw the upper portion of thesash tightly against the frame.

The bent ends of the rod are not located in a common plane but instead,the upper bent end is advanced or displaced at a small angle from theplane of the lower bent end and this enables the upper bent end toengage the sash before the lower bent end engages the sash, resulting ina torque being set up in the operating rod which causes the top end tohold the sash more securely.

The locking mechanism of the invention is of simple construction and isless costly, particularly less costly to mount due to a minimum ofmilling operations, than the conventional type of locking mechanism.Furthermore, all of the operating mechanism is located on the frame andthis avoids the necessity of mounting some of the parts on the sash.

The locking mechanism exerts a force at spaced locations along theheight of the sash which draws the sash against the frame and locks thesash to the frame. No mechanical linkage is required and this greatlysimplifies the construction and reduces the cost. Furthermore, the

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of the invention is capable of engaging and drawing in a sash which islocated up to 5%; inch from the frame. This is a considerably greaterdraw-in than can be accomplished with the conventional locking mechanismwhich normally will draw in a sash only up to 716 inch.

Other objects and advantages will appear in the course of the followingdescription.

The drawings furnished herewith illustrate the best mode presentlycontemplated of carrying out the invention.

In the drawings:

FIG. l lis a front elevation of the easement window unit employing thelocking mechanism of the invention;

FIG. 2 is a cross sectional view taken along line 2 2 of FlG. l andshowing the sash in the locked positions;

FIG. 3 is a perspective view showing the locking mechanism in the closedposition;

FG. 4 is a View similar to FIG. 3 and showing the locking mechanism inthe open position; f

FIG. 5 is an enlarged elevational view of the operating handle; and

FIG. 6 is an enlarged elevational View of the operating rod.

The drawings illustrate a easement window unit which includes agenerally rectangular frame Il and a sash 2 which is hinged along itsside edge to the frame 1. The sash is adapted to be opened or closedwith respect to the frame by either a mechanical crank, not shown, ormanually by a handle which is attached to the sash.

The frame l includes a jamb 3 and an inner flange 4 extends outwardlyfrom the inner edge of the jamb While an outer ange 5 extends in theopposite direction from the outer edge of the jamb. In addition, a smallcentral mechanism ange 6 extends laterally from the jamb adjacent thel vinner edge and in the same direction as the ange 4.

The sash 2 includes a jamb 7 and an outer flange S extends laterallyfrom the jamb and is adapted to overlap the flange 6 of the frame whenthe sash is in the closed position. To seal the joint between the flange8 and the flange 6, a weathjer stripping bead 9 of rubber, plastic orthe like, is secured Within a groove or recess lli) which extendsthroughout the length of the lange 8.

In addition to flange S, sash 2 also includes a small central fiange 11which is adapted to overlap the outer portion ofthe inner ange 4 of theframe when the sash is in the closed position, and an inner ilange 12which is disposed along the inner edge of the jarnb Tand extends in theopposite direction from the ilanges 3 and l1. As in the ease of ilangeS, the flange 1i is provided with a groove or recess 13 and a suitableweather stripping material 14 is disposed Within the recess and isadapted to seal the joint between the Harige 1l and the ange 4.

A pane of glass 15 is secured to the sash 2 and the peripheral edge ofthefglass is embedded within a glazing compound 16 which is retained inplace by a glazing bead 17. The bead 17 is locked to the sash by meansof a pair of deformable lips 1S which are engaged beneath shoulders 19formed in the recess 20 in the jamb l Each of the bearing blocks 22 and23 is composed i of a pair of half sections 26 and 27 having complemen-Vtary grooves 23 and 29 which receive and journal they rod 2l. The halfsections 26 and 27 are secured to the.-

jamb 3 by means of screws Sil; As best shown in FIG.

6, the pair of washers 3l are located on the rod and are maintainedagainst the upper surface of the lower bearing block 23 and against thelowersurface of the upper bearing block 22 by upset nipples 32. Thewashers maintain the proper positioning of the rod within the bearingblocks and prevent the rod from moving up during rotation; Y Y

The rod 2i is rotated to move the ends 24 and 25! of the rod intoengagement with the ange l1 on the sash by a tapered end portion 37 toprevent accidental displacement of the bent end 25 'of the rod from therecess 36.

The operating member 33 is disposed within an opening in the jamb 3 andis pivotallly connected to a bifurcated housing 38 by a rivet 39; Anoperating handle 4) is connected to the outer portion of the operatingmember 33 and by raising or loweringV the handle, the operating memberwill be pivoted around the rivet 39 to thereby rotate the rod 2i.

To limit the downward movement of the handle a-stop 41 is connected tothe operating member and is adapted to engage the outer surface of theiiange 4 to limit the downward movement of the handle.

The housing 38 includes a generally hat-upper portion 42 which issecuredto the ange 4 by means ofa screw 43. The lower portion 44 of the housingis bifurcated and the operating member 33 is pivotally connected in thebijturcated section 44 by rivet 39, as previously described. i

The lower portion of the housing 38 terminates in a pair of notched feet45, having notches 46 which'are adapted to engage the edge of theopening in the ange 4 and thereby maintain alignment of the housingwithin the opening.

In assembling the locking mechanism,. theY operating member 33 andhousing 38 are initially connected together as an integral unit by meansofthe rivet 39. The housing 3S is then positioned within the opening inthe iiange 4 with the notches 46' engaging the edge of the opening.` Theupper end .portion 42 of the housing is then secured to the iiange 5 bythe screw 43.

After the housing has been attached to the frame, the rod 21`ispositioned within bearing blocks 22 and 23 and the lower end of the rodis disposed within the recess The bearing blocks 22 and 23 are thensecured to the jamb 3 by means of the screws 3Q.

In the unlocked position the bent ends 24 and 2 of the rod are normallydisposed against the jamb 3 of the frame or in a plane generallyyparallel to the jamb. When the sash is closed by the operating crank,not shown, the flanges 8 and 11 of the sash will not be tightly heldagainst the corresponding flanges 6 and 4 ofthe frame. handle isdepressed, causing the fingers '34 and35 to move upwardly. Upwardmovement of the cam finger 35 serves to rotate or pivot the lower end 25of the rod, thereby causingV a corresponding pivoting of-the upper endof the rod to bring the Vbent ends V24 and 25 of the rod into Contactwith the flange llto move the ange into tight contact with the flange 4of the frame and seal the joint therebetween.

To unlock the sash, the handle is raised and the fingers 34 and 35 Vwillmove' downwardly thereby rotating the lower end 25 and upper end 24 to aposition generally parellel to the jamb 3. With the ends 24 and25 inthis position, the sash can then be opened without interference with thebent ends of the rod.

In order to provide a positive holding action for the upper end of thewindow, the upper end of the rod 21 is not disposed in a commonplanewiththe lower end To draw the sash tightly against the frame, the

. ilange, with the result that a torque is set up in the rod 21 of therod, but instead is located in a plane at an angle of 5 to 10 withrespect to the lower end. It has been found that if the upper end of therod is advanced about '7 toward the sash with respect to the lower endof the rod, the upper end of the rod will thereby engage the flange 1lbefore the lower end of the rod engages the causing the upper bent end24 to hold the sash more securely.

The locking mechanism of the invention is of simple construction andrequires less milling operations to install than the conventional typeof locking device. Furthermore, the entire `locking mechanism is locatedon the frame and this avoids having to mount operating parts on both theframe and the sash. Y

The bent ends of the rod are able to engage yand draw in a sash which isup to SKS inch ont of closing with repsect to the frame. This is asubstantially greater draw-in power than that of conventional units,most of which will have a draw-in power of only fig/6 inch.

The locking mechanism is particularly adaptable to a multiple pointwindow in which the operating mechanism operates to draw the sash inalong a plurality of points along the height of the sash. However, it iscon-` templated that the operating mechanism can be used with a singlepoint locking mechanism for a shorter easement window. ln this case, therod 2i would be cut oli above the lower bearing block 23 and the bentlower end 25 of the rod would be the only member serving to engage anddraw the sash to the frame.

Various modes of carrying out the invention are coni rtemplated as beingWithin the scope of the following claims particularly pointing out anddistinctly claiming the subject matter which is regarded as theinvention.

I claim:

l. A easement window unit, comprising a frame sec tion having an openingand having a pair of opposed jambs bordering the opening, a sash sectiondisposed Within the opening and hingedly connected to a iirst of thejambs ofthe frame section, said frame section having an abutmentextending laterallyV from thev second of said jambs toward the sashsection and said sash section having a complementary abutment extendinglaterally toward the second jamb and adapted to bear against saidabutment when the sash section is in the closed position, a rodrotatably secured to` one of said sections and disposed generallyparallel to said jambs, a pair of locking members connectedat spacedlocations to the rod with each locking member disposed at an angle withrespect to the axis of the rod, an actuating member disposed in directengagement with one of said locking members and movable in a planesubstantially parallel tothe plane of the jamb, said actuating memberdisposed to pivot said lockjambs, and an operating member operablyconnected to the actuating member for moving saidactuating member withinthe plane to thereby pivot each locking member into engagement with theabutment on the other of said sections to draw the abutments togetherand lock the sash section to the frame section.

2. The structure of claim 1 in which one of said locking members isdisposed in a plane at an angle to the plane extending through the otherlocking member so that the iirst-named-locking member will engage saidprojection before said second locking member when the rod is rotated.

3. A easement window unit, comprising a frame having `an opening andhaving a pair of vertical opposed jambs to be opened and closedwithrespect to the frame, said frame having an abutment extending inwardlyfrom the second of the jambs toward the sash and said sash having acomplementary projectionextending outwardly toward..

said second jamb and adapted to engage said abutment when the sash is inthe closed position, a vertical elongated member rotatably secured tosaid second jamb, a first locking member connected to the elongatedmember and disposed at the lower portion of the sash, a second lockingmember connected to the elongated member and disposed at the upperportion of the sash, each of said locking members being disposed in asubstantially horizontal plane, an actuating member disposed in directengagement with said first locking member and disposed to pivot saidtirst locking member about the axis of the elongated member, and anoperating member located on the inside of the window unit and operablyconnected to the actuating member for actuating the same and pivotingsaid first locking member about the axis of said elongated member andsimultaneously pivoting said second locking member about said axis, eachlocking member being engageable with the projection on the sash to drawthe projection against the abutment on the frame to thereby lock thesash to the frame at a plurality of positions along the height of thesash.

4. A Casement window unit, comprising a frame having an opening andhaving a pair ot vertical opposed jambs bordering the opening, a sashdisposed Within the opening and hingedly connected to a first of thejambs and adapted to be opened and closed with respect to the frame,said frame having an abutment extending inwardly from the second of thejambs toward the sash and said sash having a complementary projectionextending outwardly toward said second jamb and adapted to engage saidabutment when the sash is in the closed position, a vertical elongatedmember rotatably secured to said second jamb, a first locking memberconnected to the elongated member and disposed at the lower portion ofthe sash, a second locking member connected to the elongated member anddisposed at the upper portion of the sash, each of said locking membersbeing disposed in a substantially horizontal plane, said second lockingmember being disposed in a vertical plane displaced angularly from avertical plane through said first locking member and in a directiontoward said sash whereby said second locking member engages theprojection on the sash before said rst locking member engages saidprojection to thereby create a torque in the rod to provide an increasedsealing etect, an actuating member disposed in directv engagement withsaid first locking member and disposed to pivot said rst locking memberabout the axis of the elongated member, and an operating member locatedon the inside of the window unit and operably connected to the actuatingmember for actuating the same and pivoting said first locking memberabout the axis of said elongated member and simultaneously pivoting saidsecond locking member about said axis, each locking member beingengageable with the projection on the sash to draw the projectionagainst the abutment on the frame to thereby lock the sash to the frameat a plurality of positions along the height of ythe sash.

5. A easement window unit, comprising a frame having an opening andhaving a pair of vertical opposed jambs bordering the opening, a sashdisposed within the opening and hingedly connected to a first of thejambs and adapted to be opened and closed with respect to the frame,said frame having an abutment extending inwardly from the second of thejambs toward the sashand said sash having a complementary projectionextending outwardly toward said second jamb and adapted to engage saidabutment when the sash is in the closed position, a vertical elongatedmember rotatably secured to said second jamb, a first locking memberconnected to the elongated member and disposed at the lower portion ofthe sash, a second locking member connected to the elongated member anddisposed at the upper portion of the sash, each of said locking membersbeing disposed in a substantially horizontal plane, said second lockingmember being disposed in a vertical plane displaced angularly from avertical plane through said first locking member and in a directiontoward said sash whereby said second locking member engages theprojection on the sash before said rst locking member engages saidprojection to thereby `create a torque in the rod to provide anincreased sealing effect, an actuating member including a pair of ngersand having a recess between said fingers to receive said first lockingmember, one of said fingers being disposed in a plane substantiallyparallel to said jamb and the other of said fingers being disposed in aplane at an angle to said first named plane whereby said second fingeroperates as a cam to rotate said first locking member about the axis ofthe elongated member when the actuating member is moved in said irstnamed plane, and a handle connected to the frame and .located on theinside of the window unit, saidhandle being connected to the actuatingmember and serving to move said actuating member in said first namedplane to thereby rotate said locking members into engagement with theprojection on the sash to draw the projection against the correspondingabutment on the,

frame and lock the sash to the frame.

6. A locking mechanism for a easement window having a frame section anda sash section hinged to the frame section and adapted to be opened andclosed with respect to the frame section, comprising a rod rotatablymounted on a jamb portion of one of said sections, a pair of lockingmembers connected to the rod with each locking member disposed at anangle with respect to the axis of the rod, an actuating member mountedfor movement in a plane parallel to said jamb portion and including apair of fingers and a recess located between said fingers, one of saidlocking members being disposed within said recess, and cam meansassociated with one of said fingers for rotating the locking memberabout the axis of the rod as the actuating member is moved parallel tosaid jamb portion to thereby bring said locking members into engagementwith the other of said sections to draw the sash section against theframe section.

7. A easement window unit, comprising a frame having an opening andhaving a pair of vertical opposed jambs bordering the opening, a sashdisposed within the opening and hingedly connected to a first of thejambs and adapted to be opened and closed with respect to the frame,said frame having an abutment extending inwardly from the second of thejambs toward the sash and said sash having a .complementary projectionextending outwardly toward sa1d second jamb and adapted to engage saidabutment when the sash is in the closed position, a vertical elongatedmember rotatably secured to said second jamb, a first locking memberconnected to the elongated member and disposed at the lower portion oflthe sash, a second locking member connected to the elongated member anddisposed at the upper portion of the sash, each of said locking membersbeing disposed in a substantially horizontal plane, an actuating memberhaving a pair of fingers and having a recess between the ngers toreceive said first locking member, one of said vfingers having a camsurface extending at an angle with respect to the jamb, means forpivotally connectlng the actuating member to the frame for movement 1n aplane parallel to the jamb, and a handle connected to the actuatingmember and serving to pivot the actuating member in said plane tothereby rotate the locking members into engagement with the projectionon the sash to draw the projection against the corresponding abutment onthe frame and lock the sash to the frame.

8. A Casement window unit, comprising a frame having an opening andhaving a pair of vertically opposed jambs bordering the opening, saidframe also including a pair of spaced abutments extending laterallyoutward from one of the jambs toward the other jamb, a sash disposedwithin the opening and hingedly connected to said other jamb and adaptedto be opened and closed with respect to the frame, said sash having apair of abutments eX- tending laterally outwardly from the sash inspaced relation and engageable with the respective abutments of theframewhen the sash is in the closed position, a rod located inkthespacewbetween the abutments -on the frame and rotatably securedv tosaid frame, arst locking member connected to the lower portion of saidrod, a second locking member'connected to .the upper. portion of saidrod, and an actuating member located in-therspace between theabutmentson said frame Iand disposed in direct engagement :with one offsaid locking members, and an operating handle connected tothe actuatingmember for mow'ng said yactuating member and, thereby pivot said lockingmembers into engagement with one of the'V abutments on said sash todraw, said abutment against/the corresponding abutment onv the frame.

9. rThe structure of claim 8 in which theactuating member is pivotally`connected to the frame about a horizontal axis for movement in avertical plane and the outer portion of the actuating member extendsthrough a vertically extending slot in-the frame.

10. A locking mechanismfor a easement window having a frame Vsection andasash section hinged to thek frame section and adapted to-be opened andclosed with respect to thelframe section, comprising afrod rotatablymounted on oneof saidsections,/a plurality of locking members connectedto the rod and disposed at an angle with respect to the axis of the rodvand adapted to be Y moved into engagement with the other of saidsections to lock the sections together, one of said locking membersbeing located adjacent the upper portion ofthe sash section and a secondof said locking members being located adjacentv the lower portion ofsaid sash section, said rst locking member being disposed in a plane atan Aangle rto the plane extending through the other locking member andadvancedffin a direction toward said :other section so that said firstlocking member will engage said other section before said second lockingfmernber when 'the rod is rotated, and means disposed .indirectengagement with the second lockngwmember for rotating the rod about theaxis thereof to pivot said locking members into engagement with saidother section to thereby lock theA sections together.

ReferencesCited in the le of this patent UNITED STATES PATENTS 1,820,238Mears et al Aug. 25, 1931 1,955,653 Peremi et al Apr. 17, 1934 2,072,083Campbell Mar. 2, 1937 FOREIGN PATENTS 225,122 Switzerland Apr. 1, 1943

1. A CASEMENT WINDOW UNIT, COMPRISING A FRAME SECTION HAVING AN OPENINGAND HAVING A PAIR OF OPPOSED JAMBS BORDERING THE OPENING, A SASH SECTIONDISPOSED WITHIN THE OPENING AND HINGEDLY CONNECTED TO A FIRST OF THEJAMBS OF THE FRAME SECTION, SAID FRAME SECTION HAVING AN ABUTMENTEXTENDING LATERALLY FROM THE SECOND OF SAID JAMBS TOWARD THE SASHSECTION AND SAID SASH SECTION HAVING A COMPLEMENTARY ABUTMENT EXTENDINGLATERALLY TOWARD THE SECOND JAMB AND ADAPTED TO BEAR AGAINST SAIDABUTMENT WHEN THE SASH SECTION IS IN THE CLOSED POSITION, A RODROTATABLY SECURED TO ONE OF SAID SECTIONS AND DISPOSED GENERALLYPARALLEL TO SAID JAMBS, A PAIR OF LOCKING MEMBERS CONNECTED AT SPACEDLOCATIONS TO THE ROD WITH EACH LOCKING MEMBER DISPOSED AT AN ANGLE WITHRESPECT TO THE AXIS OF THE ROD, AN ACTUATING MEMBER DISPOSED IN DIRECTENGAGEMENT WITH ONE OF SAID LOCKING MEMBERS AND MOVABLE IN A PLANESUBSTANTIALLY PARALLEL TO THE PLANE OF THE JAMB, SAID ACTUATING MEMBERDISPOSED TO PIVOT SAID LOCKING MEMBER ABOUT THE AXIS OF THE ROD WHENSAID ACTUATING MEMBER IS MOVED IN A PLACE SUBSTANTIALLY PARALLEL JAMBS,AND AN OPERATING MEMBER OPERABLY CONNECTED TO THE ACTUATING MEMBER FORMOVING SAID ACTUATING MEMBER WITHIN THE PLANE TO THEREBY PIVOT EACHLOCKING MEMBER INTO ENGAGEMENT WITH THE ABUTMENTS TOGETHER AND LOCK THESASH SECTION TO THE FRAME SECTION.